## Question 1
What should be the output if the following prices are given as an input?

prices = [10, 4, 11, 1, 5]

### Options

1. 9
Incorrect

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2. 7
Correct
We buy on day 2 at price 4 and sell on day 3 at price 11, earning a profit of 7.
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3. 1
Incorrect

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4. 3
Incorrect

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## Question 2
What should be the output if the following prices are given as an input?


 prices = [7, 7, 6, 6, 6]
### Options

1. 1
Incorrect

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2. -1
Incorrect

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3. 0
Correct
It is not possible to earn a profit in this case.
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4. None of the above
Incorrect

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## Question 3
What should be the output if the following prices are given as an input?

prices = [4, 10, 5, 1, 6, 7]
### Options

1. 9
Incorrect

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2. 6
Correct
We buy on day 4 at price 1 and sell on day 6 at price 7, earning a profit of 6.
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3. 5
Incorrect

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4. 0
Incorrect

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## Question 4
What should be the output if the following prices are given as an input?

prices = [4, 4, 4, 3, 3, 4]
### Options

1. 1
Correct
We buy on day 4 or 5 at price 3 and sell on day 6 at price 4, earning a profit of 1.
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2. -1
Incorrect

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3. 4
Incorrect

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4. 0
Incorrect

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